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// file : web/apache/request.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#include <web/apache/request>
#include <apr_tables.h>
#include <strings.h> // strcasecmp()
#include <ios>
#include <ctime>
#include <chrono>
#include <memory> // unique_ptr
#include <sstream>
#include <ostream>
#include <cstring>
#include <stdexcept>
#include <streambuf>
#include <algorithm> // move()
using namespace std;
namespace web
{
namespace apache
{
const name_values& request::
cookies ()
{
if (!cookies_)
{
cookies_.reset (new name_values ());
const apr_array_header_t* ha = apr_table_elts (rec_->headers_in);
size_t n = ha->nelts;
for (auto h (reinterpret_cast<const apr_table_entry_t *> (ha->elts));
n--; ++h)
{
if (!::strcasecmp (h->key, "Cookie"))
{
for (const char* n (h->val); n != 0; )
{
const char* v = strchr (n, '=');
const char* e = strchr (n, ';');
if (e && e < v)
v = 0;
string name (v
? mime_url_decode (n, v, true)
: (e
? mime_url_decode (n, e, true)
: mime_url_decode (n, n + strlen (n), true)));
string value;
if (v++)
{
value = e
? mime_url_decode (v, e, true)
: mime_url_decode (v, v + strlen (v), true);
}
if (!name.empty () || !value.empty ())
cookies_->emplace_back (move (name), move (value));
n = e ? e + 1 : 0;
}
}
}
}
return *cookies_;
}
ostream& request::
content (status_code status, const string& type, bool buffer)
{
if (out_ && status == rec_->status && buffer == buffer_ &&
!::strcasecmp (rec_->content_type ? rec_->content_type : "",
type.c_str ()))
{
return *out_;
}
if (get_write_state ())
{
throw sequence_error ("::web::apache::request::content");
}
if (!buffer)
// Request body will be discarded prior first byte of content is
// written. Save form data now to make it available for furture
// parameters () call.
//
form_data ();
unique_ptr<std::streambuf> out_buf (
buffer
? static_cast<std::streambuf*> (new std::stringbuf ())
: static_cast<std::streambuf*> (new ostreambuf (rec_, *this)));
out_.reset (new std::ostream (out_buf.get ()));
out_buf_ = move (out_buf);
out_->exceptions (ios::eofbit | ios::failbit | ios::badbit);
buffer_ = buffer;
rec_->status = status;
ap_set_content_type (
rec_,
type.empty () ? nullptr : apr_pstrdup (rec_->pool, type.c_str ()));
return *out_;
}
void request::
cookie (const char* name,
const char* value,
const chrono::seconds* max_age,
const char* path,
const char* domain,
bool secure)
{
if (get_write_state ())
{
throw sequence_error ("::web::apache::request::cookie");
}
ostringstream s;
mime_url_encode (name, s);
s << "=";
mime_url_encode (value, s);
if (max_age)
{
chrono::system_clock::time_point tp =
chrono::system_clock::now () + *max_age;
time_t t = chrono::system_clock::to_time_t (tp);
// Assume global "C" locale is not changed.
//
char b[100];
strftime (b, sizeof (b), "%a, %d-%b-%Y %H:%M:%S GMT", gmtime (&t));
s << "; Expires=" << b;
}
if (path)
{
s << ";Path=" << path;
}
if (domain)
{
s << ";Domain=" << domain;
}
if (secure)
{
s << ";Secure";
}
apr_table_add (rec_->err_headers_out, "Set-Cookie", s.str ().c_str ());
}
}
}
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